#24 error in install

[Jasrags]

getting this error with ant install

gen_keys:
[exec] keytool error: java.lang.IllegalArgumentException: Alias [web02.mooexpress.com] MUST be knwon to the key store
[exec] Result: 1
[genkey] Generating Key for web02.mooexpress.com
[genkey] keytool error: java.security.KeyStoreException: JKS
[genkey] Provider fully qualified class name:

BUILD FAILED
/usr/local/src/opensims/build.xml:358: The following error occurred while executing this line:
/usr/local/src/opensims/tools/keymgr/build.xml:1535: The following error occurred while executing this line:
/usr/local/src/opensims/tools/keymgr/build.xml:888: exec returned: 1